ecc stands for enterprise central component.
it has two version: ecc 5.0, ecc6.0.
kernel, support pack and all other tools are very much
advance in ecc6.0 compare to any other version of sap.
it supports netweaver component also like BI,XI,EP.
In ECC6.0 all components are integerated in a single
ECC Means Enterprise Control Component.
ECC6 means it is a verson.
Now ECC7 is going to release on comming few months .
ECC6 is having more features than 4.6,4.7 versons .
Coading point of also is reducing..